1 乘法 28 等于多少？

1 × 29 = 29 1 × 27 = 27 1 × 30 = 30 1 × 26 = 26 1 × 31 = 31 1 × 25 = 25 1 × 32 = 32 1 × 24 = 24 2 × 28 = 56 3 × 28 = 84 4 × 28 = 112 5 × 28 = 140 6 × 28 = 168 7 × 28 = 196 8 × 28 = 224 9 × 28 = 252 2 × 14 = 28 4 × 7 = 28 7 × 4 = 28 14 × 2 = 28 28 × 1 = 28 69 × 21 = 1449 78 × 91 = 7098 1 × 36 = 36 7 × 55 = 385 8 × 10 = 80 12 × 57 = 684 41 - 13 = 28 48 - 20 = 28 66 - 38 = 28